Fascism was a direct result of social conflict and worker's movements in Italy after WWI. Check out the "biennio rosso" (two red years); "The revolutionary period was followed by the violent reaction of the Fascist blackshirts militia and eventually by the March on Rome of Benito Mussolini in 1922"[1].

[1] https://en.wikipedia.org/wiki/Biennio_Rosso